Embedded Files
Standard
Standard
Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
Explanation
Explanation
About the Math, Learning Targets, & Rigor
Before students begin measuring angles with protractors, they need to have some experiences with benchmark angles. They transfer their understanding that a 360∘ rotation about a point makes a complete circle to recognize and sketch angles that measure approximately 90∘ and 180∘ They extend this understanding and recognize and sketch angles that measure approximately 45∘ and 30∘. They use appropriate terminology (acute, right, and obtuse) to describe angles and rays (perpendicular).
Students should estimate angles, measure angles and sketch angles. They need to experience measuring angles using an angle ruler as well as a protractor. (The angle ruler allows them to “see” the turns or rotations).
Resources
Resources
Videos
Videos
- Khan Academy (scroll to find 4.MD.6 - click on a skill)
- Videos (on left side in each skill)
- Learn Zillion
EngageNY Lessons
EngageNY Lessons
- Module 4, Topic B, Lesson 6: Use varied protractors to distinguish angle measure from length measurement.
- Module 4, Topic B, Lesson 7: Measure and draw angles. Sketch given angle measures and verify with a protractor.
- Module 4, Topic B, Lesson 8: Identify and measure angles as turns and recognize them in various contexts.
Extra Practice
Extra Practice
- North Carolina Tasks
- Illustrative Math Tasks
- Howard County Tasks
- Click on 4th grade at bottom, then 4.MD.6
- Common Core Sheets
PARCC
PARCC
4.MD.6
4.MD.6
Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
STUDENT SAMPLE RESPONSE
Performance Indicators: 4.MD.6
Performance Indicators: 4.MD.6
Level 5: Exceeds Expectations
- Recognizes how angles are formed and that angle measures are additive.
- Understands and applies concepts of angle measurement recognizing that angles are measured in reference to a circle.
- Uses a protractor to measure and sketch angles.
- Solves mathematical and realworld problems by composing and decomposing angles.
- Solves mathematical and realworld angle problems, including problems that require the use of equations with a symbol for the unknown angle measure.
Level 4: Meets Expectations
- Understands and applies concepts of angle measurement.
- Uses a protractor to measure and sketch angles.
- Solves mathematical and real-world problems by composing and decomposing angles.
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